diff options
author | Casey Dahlin <sadmac@google.com> | 2015-09-01 13:21:26 -0700 |
---|---|---|
committer | Casey Dahlin <sadmac@google.com> | 2015-09-02 13:34:26 -0700 |
commit | ca4543cdba4ec0daeb19eb55a5a7485286304a2b (patch) | |
tree | f03fef0c90f4b95a88666ed894168eedb86c9613 /tools/aidl/generate_java_rpc.cpp | |
parent | f37947cb1a452b81f7b25cf961763c2ec3db5632 (diff) |
Remove RPC interface Type
AIDL previously supported "rpc" and "flatten" types, which are not used
anywhere in the Android tree. This patch removes them, which significantly cuts
down code and complexity.
Bug: 23517584
Test: Rebuilt AOSP tree against new version
Change-Id: I6cf38d43c1ce109ffca987cc14520945aa22431f
Signed-off-by: Casey Dahlin <sadmac@google.com>
Diffstat (limited to 'tools/aidl/generate_java_rpc.cpp')
-rw-r--r-- | tools/aidl/generate_java_rpc.cpp | 1001 |
1 files changed, 0 insertions, 1001 deletions
diff --git a/tools/aidl/generate_java_rpc.cpp b/tools/aidl/generate_java_rpc.cpp deleted file mode 100644 index 5e4daccf6334..000000000000 --- a/tools/aidl/generate_java_rpc.cpp +++ /dev/null @@ -1,1001 +0,0 @@ -#include "generate_java.h" -#include "Type.h" -#include <string.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> - -Type* SERVICE_CONTEXT_TYPE = new Type("android.content", - "Context", Type::BUILT_IN, false, false, false); -Type* PRESENTER_BASE_TYPE = new Type("android.support.place.connector", - "EventListener", Type::BUILT_IN, false, false, false); -Type* PRESENTER_LISTENER_BASE_TYPE = new Type("android.support.place.connector", - "EventListener.Listener", Type::BUILT_IN, false, false, false); -Type* RPC_BROKER_TYPE = new Type("android.support.place.connector", "Broker", - Type::BUILT_IN, false, false, false); -Type* RPC_CONTAINER_TYPE = new Type("com.android.athome.connector", "ConnectorContainer", - Type::BUILT_IN, false, false, false); -Type* PLACE_INFO_TYPE = new Type("android.support.place.connector", "PlaceInfo", - Type::BUILT_IN, false, false, false); -// TODO: Just use Endpoint, so this works for all endpoints. -Type* RPC_CONNECTOR_TYPE = new Type("android.support.place.connector", "Connector", - Type::BUILT_IN, false, false, false); -Type* RPC_ENDPOINT_INFO_TYPE = new UserDataType("android.support.place.rpc", - "EndpointInfo", true, __FILE__, __LINE__); -Type* RPC_RESULT_HANDLER_TYPE = new UserDataType("android.support.place.rpc", "RpcResultHandler", - true, __FILE__, __LINE__); -Type* RPC_ERROR_LISTENER_TYPE = new Type("android.support.place.rpc", "RpcErrorHandler", - Type::BUILT_IN, false, false, false); -Type* RPC_CONTEXT_TYPE = new UserDataType("android.support.place.rpc", "RpcContext", true, - __FILE__, __LINE__); - -static void generate_create_from_data(Type* t, StatementBlock* addTo, const string& key, - Variable* v, Variable* data, Variable** cl); -static void generate_new_array(Type* t, StatementBlock* addTo, Variable* v, Variable* from); -static void generate_write_to_data(Type* t, StatementBlock* addTo, Expression* k, Variable* v, - Variable* data); - -static string -format_int(int n) -{ - char str[20]; - sprintf(str, "%d", n); - return string(str); -} - -static string -class_name_leaf(const string& str) -{ - string::size_type pos = str.rfind('.'); - if (pos == string::npos) { - return str; - } else { - return string(str, pos+1); - } -} - -static string -results_class_name(const string& n) -{ - string str = n; - str[0] = toupper(str[0]); - str.insert(0, "On"); - return str; -} - -static string -results_method_name(const string& n) -{ - string str = n; - str[0] = toupper(str[0]); - str.insert(0, "on"); - return str; -} - -static string -push_method_name(const string& n) -{ - string str = n; - str[0] = toupper(str[0]); - str.insert(0, "push"); - return str; -} - -// ================================================= -class DispatcherClass : public Class -{ -public: - DispatcherClass(const interface_type* iface, Expression* target); - virtual ~DispatcherClass(); - - void AddMethod(const method_type* method); - void DoneWithMethods(); - - Method* processMethod; - Variable* actionParam; - Variable* requestParam; - Variable* rpcContextParam; - Variable* errorParam; - Variable* requestData; - Variable* resultData; - IfStatement* dispatchIfStatement; - Expression* targetExpression; - -private: - void generate_process(); -}; - -DispatcherClass::DispatcherClass(const interface_type* iface, Expression* target) - :Class(), - dispatchIfStatement(NULL), - targetExpression(target) -{ - generate_process(); -} - -DispatcherClass::~DispatcherClass() -{ -} - -void -DispatcherClass::generate_process() -{ - // byte[] process(String action, byte[] params, RpcContext context, RpcError status) - this->processMethod = new Method; - this->processMethod->modifiers = PUBLIC; - this->processMethod->returnType = BYTE_TYPE; - this->processMethod->returnTypeDimension = 1; - this->processMethod->name = "process"; - this->processMethod->statements = new StatementBlock; - - this->actionParam = new Variable(STRING_TYPE, "action"); - this->processMethod->parameters.push_back(this->actionParam); - - this->requestParam = new Variable(BYTE_TYPE, "requestParam", 1); - this->processMethod->parameters.push_back(this->requestParam); - - this->rpcContextParam = new Variable(RPC_CONTEXT_TYPE, "context", 0); - this->processMethod->parameters.push_back(this->rpcContextParam); - - this->errorParam = new Variable(RPC_ERROR_TYPE, "errorParam", 0); - this->processMethod->parameters.push_back(this->errorParam); - - this->requestData = new Variable(RPC_DATA_TYPE, "request"); - this->processMethod->statements->Add(new VariableDeclaration(requestData, - new NewExpression(RPC_DATA_TYPE, 1, this->requestParam))); - - this->resultData = new Variable(RPC_DATA_TYPE, "resultData"); - this->processMethod->statements->Add(new VariableDeclaration(this->resultData, - NULL_VALUE)); -} - -void -DispatcherClass::AddMethod(const method_type* method) -{ - arg_type* arg; - - // The if/switch statement - IfStatement* ifs = new IfStatement(); - ifs->expression = new MethodCall(new StringLiteralExpression(method->name.data), "equals", - 1, this->actionParam); - StatementBlock* block = ifs->statements = new StatementBlock; - if (this->dispatchIfStatement == NULL) { - this->dispatchIfStatement = ifs; - this->processMethod->statements->Add(dispatchIfStatement); - } else { - this->dispatchIfStatement->elseif = ifs; - this->dispatchIfStatement = ifs; - } - - // The call to decl (from above) - MethodCall* realCall = new MethodCall(this->targetExpression, method->name.data); - - // args - Variable* classLoader = NULL; - VariableFactory stubArgs("_arg"); - arg = method->args; - while (arg != NULL) { - Type* t = NAMES.Search(arg->type.type.data); - Variable* v = stubArgs.Get(t); - v->dimension = arg->type.dimension; - - // Unmarshall the parameter - block->Add(new VariableDeclaration(v)); - if (convert_direction(arg->direction.data) & IN_PARAMETER) { - generate_create_from_data(t, block, arg->name.data, v, - this->requestData, &classLoader); - } else { - if (arg->type.dimension == 0) { - block->Add(new Assignment(v, new NewExpression(v->type))); - } - else if (arg->type.dimension == 1) { - generate_new_array(v->type, block, v, this->requestData); - } - else { - fprintf(stderr, "aidl:internal error %s:%d\n", __FILE__, - __LINE__); - } - } - - // Add that parameter to the method call - realCall->arguments.push_back(v); - - arg = arg->next; - } - - // Add a final parameter: RpcContext. Contains data about - // incoming request (e.g., certificate) - realCall->arguments.push_back(new Variable(RPC_CONTEXT_TYPE, "context", 0)); - - Type* returnType = NAMES.Search(method->type.type.data); - if (returnType == EVENT_FAKE_TYPE) { - returnType = VOID_TYPE; - } - - // the real call - bool first = true; - Variable* _result = NULL; - if (returnType == VOID_TYPE) { - block->Add(realCall); - } else { - _result = new Variable(returnType, "_result", - method->type.dimension); - block->Add(new VariableDeclaration(_result, realCall)); - - // need the result RpcData - if (first) { - block->Add(new Assignment(this->resultData, - new NewExpression(RPC_DATA_TYPE))); - first = false; - } - - // marshall the return value - generate_write_to_data(returnType, block, - new StringLiteralExpression("_result"), _result, this->resultData); - } - - // out parameters - int i = 0; - arg = method->args; - while (arg != NULL) { - Type* t = NAMES.Search(arg->type.type.data); - Variable* v = stubArgs.Get(i++); - - if (convert_direction(arg->direction.data) & OUT_PARAMETER) { - // need the result RpcData - if (first) { - block->Add(new Assignment(this->resultData, new NewExpression(RPC_DATA_TYPE))); - first = false; - } - - generate_write_to_data(t, block, new StringLiteralExpression(arg->name.data), - v, this->resultData); - } - - arg = arg->next; - } -} - -void -DispatcherClass::DoneWithMethods() -{ - if (this->dispatchIfStatement == NULL) { - return; - } - - this->elements.push_back(this->processMethod); - - IfStatement* fallthrough = new IfStatement(); - fallthrough->statements = new StatementBlock; - fallthrough->statements->Add(new ReturnStatement( - new MethodCall(SUPER_VALUE, "process", 4, - this->actionParam, this->requestParam, - this->rpcContextParam, - this->errorParam))); - this->dispatchIfStatement->elseif = fallthrough; - IfStatement* s = new IfStatement; - s->statements = new StatementBlock; - this->processMethod->statements->Add(s); - s->expression = new Comparison(this->resultData, "!=", NULL_VALUE); - s->statements->Add(new ReturnStatement(new MethodCall(this->resultData, "serialize"))); - s->elseif = new IfStatement; - s = s->elseif; - s->statements->Add(new ReturnStatement(NULL_VALUE)); -} - -// ================================================= -class RpcProxyClass : public Class -{ -public: - RpcProxyClass(const interface_type* iface, InterfaceType* interfaceType); - virtual ~RpcProxyClass(); - - Variable* endpoint; - Variable* broker; - -private: - void generate_ctor(); - void generate_get_endpoint_info(); -}; - -RpcProxyClass::RpcProxyClass(const interface_type* iface, InterfaceType* interfaceType) - :Class() -{ - this->comment = gather_comments(iface->comments_token->extra); - this->modifiers = PUBLIC; - this->what = Class::CLASS; - this->type = interfaceType; - - // broker - this->broker = new Variable(RPC_BROKER_TYPE, "_broker"); - this->elements.push_back(new Field(PRIVATE, this->broker)); - // endpoint - this->endpoint = new Variable(RPC_ENDPOINT_INFO_TYPE, "_endpoint"); - this->elements.push_back(new Field(PRIVATE, this->endpoint)); - - // methods - generate_ctor(); - generate_get_endpoint_info(); -} - -RpcProxyClass::~RpcProxyClass() -{ -} - -void -RpcProxyClass::generate_ctor() -{ - Variable* broker = new Variable(RPC_BROKER_TYPE, "broker"); - Variable* endpoint = new Variable(RPC_ENDPOINT_INFO_TYPE, "endpoint"); - Method* ctor = new Method; - ctor->modifiers = PUBLIC; - ctor->name = class_name_leaf(this->type->Name()); - ctor->statements = new StatementBlock; - ctor->parameters.push_back(broker); - ctor->parameters.push_back(endpoint); - this->elements.push_back(ctor); - - ctor->statements->Add(new Assignment(this->broker, broker)); - ctor->statements->Add(new Assignment(this->endpoint, endpoint)); -} - -void -RpcProxyClass::generate_get_endpoint_info() -{ - Method* get = new Method; - get->modifiers = PUBLIC; - get->returnType = RPC_ENDPOINT_INFO_TYPE; - get->name = "getEndpointInfo"; - get->statements = new StatementBlock; - this->elements.push_back(get); - - get->statements->Add(new ReturnStatement(this->endpoint)); -} - -// ================================================= -class EventListenerClass : public DispatcherClass -{ -public: - EventListenerClass(const interface_type* iface, Type* listenerType); - virtual ~EventListenerClass(); - - Variable* _listener; - -private: - void generate_ctor(); -}; - -Expression* -generate_get_listener_expression(Type* cast) -{ - return new Cast(cast, new MethodCall(THIS_VALUE, "getView")); -} - -EventListenerClass::EventListenerClass(const interface_type* iface, Type* listenerType) - :DispatcherClass(iface, new FieldVariable(THIS_VALUE, "_listener")) -{ - this->modifiers = PRIVATE; - this->what = Class::CLASS; - this->type = new Type(iface->package ? iface->package : "", - append(iface->name.data, ".Presenter"), - Type::GENERATED, false, false, false); - this->extends = PRESENTER_BASE_TYPE; - - this->_listener = new Variable(listenerType, "_listener"); - this->elements.push_back(new Field(PRIVATE, this->_listener)); - - // methods - generate_ctor(); -} - -EventListenerClass::~EventListenerClass() -{ -} - -void -EventListenerClass::generate_ctor() -{ - Variable* broker = new Variable(RPC_BROKER_TYPE, "broker"); - Variable* listener = new Variable(this->_listener->type, "listener"); - Method* ctor = new Method; - ctor->modifiers = PUBLIC; - ctor->name = class_name_leaf(this->type->Name()); - ctor->statements = new StatementBlock; - ctor->parameters.push_back(broker); - ctor->parameters.push_back(listener); - this->elements.push_back(ctor); - - ctor->statements->Add(new MethodCall("super", 2, broker, listener)); - ctor->statements->Add(new Assignment(this->_listener, listener)); -} - -// ================================================= -class ListenerClass : public Class -{ -public: - ListenerClass(const interface_type* iface); - virtual ~ListenerClass(); - - bool needed; - -private: - void generate_ctor(); -}; - -ListenerClass::ListenerClass(const interface_type* iface) - :Class(), - needed(false) -{ - this->comment = "/** Extend this to listen to the events from this class. */"; - this->modifiers = STATIC | PUBLIC ; - this->what = Class::CLASS; - this->type = new Type(iface->package ? iface->package : "", - append(iface->name.data, ".Listener"), - Type::GENERATED, false, false, false); - this->extends = PRESENTER_LISTENER_BASE_TYPE; -} - -ListenerClass::~ListenerClass() -{ -} - -// ================================================= -class EndpointBaseClass : public DispatcherClass -{ -public: - EndpointBaseClass(const interface_type* iface); - virtual ~EndpointBaseClass(); - - bool needed; - -private: - void generate_ctor(); -}; - -EndpointBaseClass::EndpointBaseClass(const interface_type* iface) - :DispatcherClass(iface, THIS_VALUE), - needed(false) -{ - this->comment = "/** Extend this to implement a link service. */"; - this->modifiers = STATIC | PUBLIC | ABSTRACT; - this->what = Class::CLASS; - this->type = new Type(iface->package ? iface->package : "", - append(iface->name.data, ".EndpointBase"), - Type::GENERATED, false, false, false); - this->extends = RPC_CONNECTOR_TYPE; - - // methods - generate_ctor(); -} - -EndpointBaseClass::~EndpointBaseClass() -{ -} - -void -EndpointBaseClass::generate_ctor() -{ - Variable* container = new Variable(RPC_CONTAINER_TYPE, "container"); - Variable* broker = new Variable(RPC_BROKER_TYPE, "broker"); - Variable* place = new Variable(PLACE_INFO_TYPE, "placeInfo"); - Method* ctor = new Method; - ctor->modifiers = PUBLIC; - ctor->name = class_name_leaf(this->type->Name()); - ctor->statements = new StatementBlock; - ctor->parameters.push_back(container); - ctor->parameters.push_back(broker); - ctor->parameters.push_back(place); - this->elements.push_back(ctor); - - ctor->statements->Add(new MethodCall("super", 3, container, broker, place)); -} - -// ================================================= -class ResultDispatcherClass : public Class -{ -public: - ResultDispatcherClass(); - virtual ~ResultDispatcherClass(); - - void AddMethod(int index, const string& name, Method** method, Variable** param); - - bool needed; - Variable* methodId; - Variable* callback; - Method* onResultMethod; - Variable* resultParam; - SwitchStatement* methodSwitch; - -private: - void generate_ctor(); - void generate_onResult(); -}; - -ResultDispatcherClass::ResultDispatcherClass() - :Class(), - needed(false) -{ - this->modifiers = PRIVATE | FINAL; - this->what = Class::CLASS; - this->type = new Type("_ResultDispatcher", Type::GENERATED, false, false, false); - this->interfaces.push_back(RPC_RESULT_HANDLER_TYPE); - - // methodId - this->methodId = new Variable(INT_TYPE, "methodId"); - this->elements.push_back(new Field(PRIVATE, this->methodId)); - this->callback = new Variable(OBJECT_TYPE, "callback"); - this->elements.push_back(new Field(PRIVATE, this->callback)); - - // methods - generate_ctor(); - generate_onResult(); -} - -ResultDispatcherClass::~ResultDispatcherClass() -{ -} - -void -ResultDispatcherClass::generate_ctor() -{ - Variable* methodIdParam = new Variable(INT_TYPE, "methId"); - Variable* callbackParam = new Variable(OBJECT_TYPE, "cbObj"); - Method* ctor = new Method; - ctor->modifiers = PUBLIC; - ctor->name = class_name_leaf(this->type->Name()); - ctor->statements = new StatementBlock; - ctor->parameters.push_back(methodIdParam); - ctor->parameters.push_back(callbackParam); - this->elements.push_back(ctor); - - ctor->statements->Add(new Assignment(this->methodId, methodIdParam)); - ctor->statements->Add(new Assignment(this->callback, callbackParam)); -} - -void -ResultDispatcherClass::generate_onResult() -{ - this->onResultMethod = new Method; - this->onResultMethod->modifiers = PUBLIC; - this->onResultMethod->returnType = VOID_TYPE; - this->onResultMethod->returnTypeDimension = 0; - this->onResultMethod->name = "onResult"; - this->onResultMethod->statements = new StatementBlock; - this->elements.push_back(this->onResultMethod); - - this->resultParam = new Variable(BYTE_TYPE, "result", 1); - this->onResultMethod->parameters.push_back(this->resultParam); - - this->methodSwitch = new SwitchStatement(this->methodId); - this->onResultMethod->statements->Add(this->methodSwitch); -} - -void -ResultDispatcherClass::AddMethod(int index, const string& name, Method** method, Variable** param) -{ - Method* m = new Method; - m->modifiers = PUBLIC; - m->returnType = VOID_TYPE; - m->returnTypeDimension = 0; - m->name = name; - m->statements = new StatementBlock; - *param = new Variable(BYTE_TYPE, "result", 1); - m->parameters.push_back(*param); - this->elements.push_back(m); - *method = m; - - Case* c = new Case(format_int(index)); - c->statements->Add(new MethodCall(new LiteralExpression("this"), name, 1, this->resultParam)); - c->statements->Add(new Break()); - - this->methodSwitch->cases.push_back(c); -} - -// ================================================= -static void -generate_new_array(Type* t, StatementBlock* addTo, Variable* v, Variable* from) -{ - fprintf(stderr, "aidl: implement generate_new_array %s:%d\n", __FILE__, __LINE__); - exit(1); -} - -static void -generate_create_from_data(Type* t, StatementBlock* addTo, const string& key, Variable* v, - Variable* data, Variable** cl) -{ - Expression* k = new StringLiteralExpression(key); - if (v->dimension == 0) { - t->CreateFromRpcData(addTo, k, v, data, cl); - } - if (v->dimension == 1) { - //t->ReadArrayFromRpcData(addTo, v, data, cl); - fprintf(stderr, "aidl: implement generate_create_from_data for arrays%s:%d\n", - __FILE__, __LINE__); - } -} - -static void -generate_write_to_data(Type* t, StatementBlock* addTo, Expression* k, Variable* v, Variable* data) -{ - if (v->dimension == 0) { - t->WriteToRpcData(addTo, k, v, data, 0); - } - if (v->dimension == 1) { - //t->WriteArrayToParcel(addTo, v, data); - fprintf(stderr, "aidl: implement generate_write_to_data for arrays%s:%d\n", - __FILE__, __LINE__); - } -} - -// ================================================= -static Type* -generate_results_method(const method_type* method, RpcProxyClass* proxyClass) -{ - arg_type* arg; - - string resultsMethodName = results_method_name(method->name.data); - Type* resultsInterfaceType = new Type(results_class_name(method->name.data), - Type::GENERATED, false, false, false); - - if (!method->oneway) { - Class* resultsClass = new Class; - resultsClass->modifiers = STATIC | PUBLIC; - resultsClass->what = Class::INTERFACE; - resultsClass->type = resultsInterfaceType; - - Method* resultMethod = new Method; - resultMethod->comment = gather_comments(method->comments_token->extra); - resultMethod->modifiers = PUBLIC; - resultMethod->returnType = VOID_TYPE; - resultMethod->returnTypeDimension = 0; - resultMethod->name = resultsMethodName; - if (0 != strcmp("void", method->type.type.data)) { - resultMethod->parameters.push_back(new Variable(NAMES.Search(method->type.type.data), - "_result", method->type.dimension)); - } - arg = method->args; - while (arg != NULL) { - if (convert_direction(arg->direction.data) & OUT_PARAMETER) { - resultMethod->parameters.push_back(new Variable( - NAMES.Search(arg->type.type.data), arg->name.data, - arg->type.dimension)); - } - arg = arg->next; - } - resultsClass->elements.push_back(resultMethod); - - if (resultMethod->parameters.size() > 0) { - proxyClass->elements.push_back(resultsClass); - return resultsInterfaceType; - } - } - //delete resultsInterfaceType; - return NULL; -} - -static void -generate_proxy_method(const method_type* method, RpcProxyClass* proxyClass, - ResultDispatcherClass* resultsDispatcherClass, Type* resultsInterfaceType, int index) -{ - arg_type* arg; - Method* proxyMethod = new Method; - proxyMethod->comment = gather_comments(method->comments_token->extra); - proxyMethod->modifiers = PUBLIC; - proxyMethod->returnType = VOID_TYPE; - proxyMethod->returnTypeDimension = 0; - proxyMethod->name = method->name.data; - proxyMethod->statements = new StatementBlock; - proxyClass->elements.push_back(proxyMethod); - - // The local variables - Variable* _data = new Variable(RPC_DATA_TYPE, "_data"); - proxyMethod->statements->Add(new VariableDeclaration(_data, new NewExpression(RPC_DATA_TYPE))); - - // Add the arguments - arg = method->args; - while (arg != NULL) { - if (convert_direction(arg->direction.data) & IN_PARAMETER) { - // Function signature - Type* t = NAMES.Search(arg->type.type.data); - Variable* v = new Variable(t, arg->name.data, arg->type.dimension); - proxyMethod->parameters.push_back(v); - - // Input parameter marshalling - generate_write_to_data(t, proxyMethod->statements, - new StringLiteralExpression(arg->name.data), v, _data); - } - arg = arg->next; - } - - // If there is a results interface for this class - Expression* resultParameter; - if (resultsInterfaceType != NULL) { - // Result interface parameter - Variable* resultListener = new Variable(resultsInterfaceType, "_result"); - proxyMethod->parameters.push_back(resultListener); - - // Add the results dispatcher callback - resultsDispatcherClass->needed = true; - resultParameter = new NewExpression(resultsDispatcherClass->type, 2, - new LiteralExpression(format_int(index)), resultListener); - } else { - resultParameter = NULL_VALUE; - } - - // All proxy methods take an error parameter - Variable* errorListener = new Variable(RPC_ERROR_LISTENER_TYPE, "_errors"); - proxyMethod->parameters.push_back(errorListener); - - // Call the broker - proxyMethod->statements->Add(new MethodCall(new FieldVariable(THIS_VALUE, "_broker"), - "sendRpc", 5, - proxyClass->endpoint, - new StringLiteralExpression(method->name.data), - new MethodCall(_data, "serialize"), - resultParameter, - errorListener)); -} - -static void -generate_result_dispatcher_method(const method_type* method, - ResultDispatcherClass* resultsDispatcherClass, Type* resultsInterfaceType, int index) -{ - arg_type* arg; - Method* dispatchMethod; - Variable* dispatchParam; - resultsDispatcherClass->AddMethod(index, method->name.data, &dispatchMethod, &dispatchParam); - - Variable* classLoader = NULL; - Variable* resultData = new Variable(RPC_DATA_TYPE, "resultData"); - dispatchMethod->statements->Add(new VariableDeclaration(resultData, - new NewExpression(RPC_DATA_TYPE, 1, dispatchParam))); - - // The callback method itself - MethodCall* realCall = new MethodCall( - new Cast(resultsInterfaceType, new FieldVariable(THIS_VALUE, "callback")), - results_method_name(method->name.data)); - - // The return value - { - Type* t = NAMES.Search(method->type.type.data); - if (t != VOID_TYPE) { - Variable* rv = new Variable(t, "rv"); - dispatchMethod->statements->Add(new VariableDeclaration(rv)); - generate_create_from_data(t, dispatchMethod->statements, "_result", rv, - resultData, &classLoader); - realCall->arguments.push_back(rv); - } - } - - VariableFactory stubArgs("arg"); - arg = method->args; - while (arg != NULL) { - if (convert_direction(arg->direction.data) & OUT_PARAMETER) { - // Unmarshall the results - Type* t = NAMES.Search(arg->type.type.data); - Variable* v = stubArgs.Get(t); - dispatchMethod->statements->Add(new VariableDeclaration(v)); - - generate_create_from_data(t, dispatchMethod->statements, arg->name.data, v, - resultData, &classLoader); - - // Add the argument to the callback - realCall->arguments.push_back(v); - } - arg = arg->next; - } - - // Call the callback method - IfStatement* ifst = new IfStatement; - ifst->expression = new Comparison(new FieldVariable(THIS_VALUE, "callback"), "!=", NULL_VALUE); - dispatchMethod->statements->Add(ifst); - ifst->statements->Add(realCall); -} - -static void -generate_regular_method(const method_type* method, RpcProxyClass* proxyClass, - EndpointBaseClass* serviceBaseClass, ResultDispatcherClass* resultsDispatcherClass, - int index) -{ - arg_type* arg; - - // == the callback interface for results ================================ - // the service base class - Type* resultsInterfaceType = generate_results_method(method, proxyClass); - - // == the method in the proxy class ===================================== - generate_proxy_method(method, proxyClass, resultsDispatcherClass, resultsInterfaceType, index); - - // == the method in the result dispatcher class ========================= - if (resultsInterfaceType != NULL) { - generate_result_dispatcher_method(method, resultsDispatcherClass, resultsInterfaceType, - index); - } - - // == The abstract method that the service developers implement ========== - Method* decl = new Method; - decl->comment = gather_comments(method->comments_token->extra); - decl->modifiers = PUBLIC | ABSTRACT; - decl->returnType = NAMES.Search(method->type.type.data); - decl->returnTypeDimension = method->type.dimension; - decl->name = method->name.data; - arg = method->args; - while (arg != NULL) { - decl->parameters.push_back(new Variable( - NAMES.Search(arg->type.type.data), arg->name.data, - arg->type.dimension)); - arg = arg->next; - } - - // Add the default RpcContext param to all methods - decl->parameters.push_back(new Variable(RPC_CONTEXT_TYPE, "context", 0)); - - serviceBaseClass->elements.push_back(decl); - - - // == the dispatch method in the service base class ====================== - serviceBaseClass->AddMethod(method); -} - -static void -generate_event_method(const method_type* method, RpcProxyClass* proxyClass, - EndpointBaseClass* serviceBaseClass, ListenerClass* listenerClass, - EventListenerClass* presenterClass, int index) -{ - arg_type* arg; - listenerClass->needed = true; - - // == the push method in the service base class ========================= - Method* push = new Method; - push->modifiers = PUBLIC; - push->name = push_method_name(method->name.data); - push->statements = new StatementBlock; - push->returnType = VOID_TYPE; - serviceBaseClass->elements.push_back(push); - - // The local variables - Variable* _data = new Variable(RPC_DATA_TYPE, "_data"); - push->statements->Add(new VariableDeclaration(_data, new NewExpression(RPC_DATA_TYPE))); - - // Add the arguments - arg = method->args; - while (arg != NULL) { - // Function signature - Type* t = NAMES.Search(arg->type.type.data); - Variable* v = new Variable(t, arg->name.data, arg->type.dimension); - push->parameters.push_back(v); - - // Input parameter marshalling - generate_write_to_data(t, push->statements, - new StringLiteralExpression(arg->name.data), v, _data); - - arg = arg->next; - } - - // Send the notifications - push->statements->Add(new MethodCall("pushEvent", 2, - new StringLiteralExpression(method->name.data), - new MethodCall(_data, "serialize"))); - - // == the event callback dispatcher method ==================================== - presenterClass->AddMethod(method); - - // == the event method in the listener base class ===================== - Method* event = new Method; - event->modifiers = PUBLIC; - event->name = method->name.data; - event->statements = new StatementBlock; - event->returnType = VOID_TYPE; - listenerClass->elements.push_back(event); - arg = method->args; - while (arg != NULL) { - event->parameters.push_back(new Variable( - NAMES.Search(arg->type.type.data), arg->name.data, - arg->type.dimension)); - arg = arg->next; - } - - // Add a final parameter: RpcContext. Contains data about - // incoming request (e.g., certificate) - event->parameters.push_back(new Variable(RPC_CONTEXT_TYPE, "context", 0)); -} - -static void -generate_listener_methods(RpcProxyClass* proxyClass, Type* presenterType, Type* listenerType) -{ - // AndroidAtHomePresenter _presenter; - // void startListening(Listener listener) { - // stopListening(); - // _presenter = new Presenter(_broker, listener); - // _presenter.startListening(_endpoint); - // } - // void stopListening() { - // if (_presenter != null) { - // _presenter.stopListening(); - // } - // } - - Variable* _presenter = new Variable(presenterType, "_presenter"); - proxyClass->elements.push_back(new Field(PRIVATE, _presenter)); - - Variable* listener = new Variable(listenerType, "listener"); - - Method* startListeningMethod = new Method; - startListeningMethod->modifiers = PUBLIC; - startListeningMethod->returnType = VOID_TYPE; - startListeningMethod->name = "startListening"; - startListeningMethod->statements = new StatementBlock; - startListeningMethod->parameters.push_back(listener); - proxyClass->elements.push_back(startListeningMethod); - - startListeningMethod->statements->Add(new MethodCall(THIS_VALUE, "stopListening")); - startListeningMethod->statements->Add(new Assignment(_presenter, - new NewExpression(presenterType, 2, proxyClass->broker, listener))); - startListeningMethod->statements->Add(new MethodCall(_presenter, - "startListening", 1, proxyClass->endpoint)); - - Method* stopListeningMethod = new Method; - stopListeningMethod->modifiers = PUBLIC; - stopListeningMethod->returnType = VOID_TYPE; - stopListeningMethod->name = "stopListening"; - stopListeningMethod->statements = new StatementBlock; - proxyClass->elements.push_back(stopListeningMethod); - - IfStatement* ifst = new IfStatement; - ifst->expression = new Comparison(_presenter, "!=", NULL_VALUE); - stopListeningMethod->statements->Add(ifst); - - ifst->statements->Add(new MethodCall(_presenter, "stopListening")); - ifst->statements->Add(new Assignment(_presenter, NULL_VALUE)); -} - -Class* -generate_rpc_interface_class(const interface_type* iface) -{ - // the proxy class - InterfaceType* interfaceType = static_cast<InterfaceType*>( - NAMES.Find(iface->package, iface->name.data)); - RpcProxyClass* proxy = new RpcProxyClass(iface, interfaceType); - - // the listener class - ListenerClass* listener = new ListenerClass(iface); - - // the presenter class - EventListenerClass* presenter = new EventListenerClass(iface, listener->type); - - // the service base class - EndpointBaseClass* base = new EndpointBaseClass(iface); - proxy->elements.push_back(base); - - // the result dispatcher - ResultDispatcherClass* results = new ResultDispatcherClass(); - - // all the declared methods of the proxy - int index = 0; - interface_item_type* item = iface->interface_items; - while (item != NULL) { - if (item->item_type == METHOD_TYPE) { - if (NAMES.Search(((method_type*)item)->type.type.data) == EVENT_FAKE_TYPE) { - generate_event_method((method_type*)item, proxy, base, listener, presenter, index); - } else { - generate_regular_method((method_type*)item, proxy, base, results, index); - } - } - item = item->next; - index++; - } - presenter->DoneWithMethods(); - base->DoneWithMethods(); - - // only add this if there are methods with results / out parameters - if (results->needed) { - proxy->elements.push_back(results); - } - if (listener->needed) { - proxy->elements.push_back(listener); - proxy->elements.push_back(presenter); - generate_listener_methods(proxy, presenter->type, listener->type); - } - - return proxy; -} |